Attachment for discharging contents from vessels



M. HEFFERNAN.

ATTACHMENT FOR DISCHARGING CONTENTS FROM VESSELS. APPL'ICATION FILED MAY14,1920.

1,380,062 Patented May 31, 1921.

flgl f-v- MICHAEL HEFFERNAN', OIE CARRAP, EBENE-IOPB, VICTORIA, AUSTRALIA, ASSIGNOR OF ONE-THIRD TO JAMES CHRISTIAN GLANCY, 0F APSLEY, VICTORIA, AUSTRALIA.

ATTACHMENT ron mscHAitGiNeooNTnNrs FROM vEssELs.

Application sie@ May 14,1920. serial Nb. $131,501., y

To all wlw/m, t may concern Be it known that I, MICHAEL HEFFERNAN, a subject of the KingoGreat Britain and Ireland, etc., residing at Carrap', Edenhope,

in the State of'Victoria-Commonwealth of i Australia, have invented certain new and useful Improvements in Attachments for Discharging Contents Vfrom Vessels; andfl do hereby declare the following to be a full, clear, and exact description of the inven-y tion, such as will enable others skilled in the i art to which it appertains to make and use thesame.V i This invention relates to removable vattachments to various articles including walls of vessels, especial-ly of sheet metal containers offluid suchas petrol or kerosene. The attachments include tubes for emptying, `or for introducing liquid into the vessels; or the attachments provide, and when required cut oli, air passages. Or they are used for j any other purpose. These attachments are quickly connected or removed. y

Each attachment has a stem, a cutter to puncture the vessel sol as to Vadmit part of the stem, and means'including a spring coil for clamping rthe stem tightly to the vessel;' Other inventions of the same type have a spring coil, but it is diierently used, and has not produced such tight gripping as the present construction- `Where the stem'. is tubular it is very Vimportantvthat the attachment be more leak prooib than prior constructions using a coil have been,I and this result is secured.

In the drawings herewith an attachment made according. tothis invention is illustrated, but the invention is notv limited to the designs or proportions or to minor features of the parts shown, consequently the construction may vhave .obvious additions, and modifications, so long as matter herein-Y after claimed is retained. l.

Figure 1 is aside view, ofthe attachment having an outer abutment ring part of which is broken away to exhibit the interior.

Fig. 2 is a side view of an Vattachment firmly clamped to a wall which may be that of ajpetrolcan. The cutterf is ofv different 'Y form from that of Fig. 1 Y

Fig. `3 shows part of a sheet metal Wall,

Specification ct' Letters Patent.

' ino'. l piessed into it, enlarging as at l() the hole ll, whichwill have been made by cutting Patented iviay 31, 1921.

this device. i

This attachment may be set in horizontal,

with a hole as made in it by the cutters of vertical, or other, appropriate position, and

thoughV it willusually make its lown' hole inl the vessel, it could utilize a hole made otherwise.l

In the example illustrated a tube is provided' for pouring purposes; lV is its inner end; it is of any suitable length and hasA a flange or collarlQ, dividing .its innerend l vfroml its outer end 3. In the preferred construction the collar VVis. integral `ivith'the stem,'butit may be separate and adjustable,

as' by being screwed on to a screw-threaded. part (not shown) of the stem. VThe outer portion of the stem will be varied accord.-

ing to the intendedv application olf the ,atv`l tachnient; and thus it may carry a spout,

tap, funnel, screwtliread, eye, hook, bearing,

chain,1 or handle, no particular detail being claimed.

When theinncr endl, is ixed'inside wallfl, maybe part of -a petrol tin, a coil point 5 and theA fore part 6 of the coil and part oit themiddle 7 of the coil will also beA inside. The rear'S of the coil after.

known, as in'Figs. 1 or 2,`in"wliich 9 are cutting edges, which act when the stem is rotated and pressed .against wall 4. An-

other cutter 5 -`forms the front end of the coil, `which is of wire or like suitable mate- .il

rial and is of square, circular, or other cross section.`

The coilincloses part of the stem, and

its cutter 5, and ashort part 12 of the coil behind it, are fixed to. the stem as by braz-f Point 5 pierces the wall or vessel when members 9, butthe edges of the hole 111,

10, will be more or less jagged, and theyV will not be in onen plane.

lrm 12 of uieeoii isixea to the Stem because itv has to actas a strong abutment;

nearly at, right angles to the longitudinal axis of the stem or tube, and the result is that some of the coil at the rear of part 12 can be pressed against the fixed part in planes parallel to the latter as in Fig. 2. rlhis is important because the coil will then press firmly all around against the inner side of the wall 4 for the purpose indicated hereinafter.

When the stem by pressure and rotation has been inserted so that a gapped hole, 10, 11 has been made in the article or wall 4 further rotation advances the stem and coil end into the vessel until the face 13 of a ring 14 on the attachment meets the outer face 15 of the wall. Y

When it is desired that the ring shall act as a leak preventer, it is preferably formed of resilient material, such as rubber, and .in such cases it is backed by the flange or collar 2. This ring is preferably of such internal diameter that its face 13 contacts with the outer surface of the vessel at some distance from the edges of the opening 11, which will often be ragged and uneven and would therefore tend to damage a resilient ring if the latter was in contact therewith under pressure, as it would have to be to form a clamping, leak-preventing means.

At the distance from the hole where thel ring contacts with the wall .the latter is smooth and able to withstand greater pressure, without injury to thek resilient ring when the latter` is rotated or is left under pressure. 1f leak prevention is not necessary, the utilization of the aforesaid smooth annular surface remote from hole 11 is still advantageous to promote powerful clampmg.

The ring 14 houses and protects part of the coil in a space 16 around the stem, but allows a housed part of the coil to move outward when required. The said housed part is as explained later moved outward as in Fig. 2 for clamping purposes. The rear end of the coil may extend to or near flange 2. To prevent chafing or undue pressure by the coil on the ring interior there is provided around the coil rear in some cases a protective ferrule 17.

If desired the ring 14 will be set more forward, as by placing` a washer between it and flange 2. To allow of pouring fluid from the vessel when it is nearly empty (the vessel being tilted if necessary) the stem is slotted or apertured as at 18 under ring 14 and across wall 4.

Then effecting the clamping, ring 14 meets the surface 15 as described, part of the coil being on side 19 of the wall; then the stem is rotated with pressure and more of the coil becomes forced to side 19, the coil rear drawing away from collar 2. r1`he greater the rotation the more of the coil (which is springy) which was in space 16 l. passes to side 19 and becomes compressed between the fixed part 12 and the wall inner surface as in F ig. 2.

In this way the abutment ring or stop 14 also becomes firmly compressed between wall surface 15 and stem flange 2; and the clamping is complete.

Easy removal of the attachment is facilitated by having a coil of such length that it cannot all be forced to side 19 but must in part remain in space 16, outside the wall. f

The described device is usable to provide an air hole in a vessel or wall, its rotatable stem being added to at will by means of obvious kind to cut off passage of air if required. p y

Any suitable abutment which incloses the stem my be substituted for ring 14.

Having described this invention, what is claimed by Letters Patent is 1. A self-clamping deviceof the character described, comprising a stem adapted te puncture a wall, a flexible member having its forward end pointed and secured to the stem for passage through the wall thereby to carry said flexible member into position to exert spring tension on one side of said wall, and means carried by the stem for clamping said wall between it and said flexible member.

2. A self-clamping device of the character described, comprising a stem adapted to puncture a wall, a spring coil encircling` said stem and secured thereto at its forward portion, the rear portion of said coil being free to move longitudinally of said stem, and means carried by said stem for clamping said wall between it and the longitudinally movable portion of the coil.

3. A self-clamping device of the character described, comprising a stem adapted to puncture a wall, a spring coil encircling said stem and secured thereto at its forward portion approximately at right angles to the longitudinal axis of the stem, the rear portion of said coil being free to move longitudinally lof said stem, means carried by said stem for clamping said wall between said means and the longitudinally movable portion of the coil, and a resilient ring betweln said means and the outer side of said wa` Y 4. A stem to be clamped, having cutting means at one end, a resilient ring inclosing a space around the stem, a collar or enlargement backing the ring, a coiled spring around the stem, the coil fore end being permanently fixed to the stem, the rest of the coil being partly housed within the ring, and a ferrule between the ring and the coil rear.

5. A hollow stem to be clamped, having a cutting end and a collar or flange, a coiled spring having a fixed fore end, a ferrule around the spring rear, and a resilient ring around the ferrule and part of the coil, the

stem being slotted under the ring to allow resilient ring encircling the free portion of of drainage of a nearly empty vessel. Said coil, and a flange carried by the stem .1.0 6. A self-clamping device of the character and adapted to clamp said wall between said described, comprising a stein adapted to ring and the longitudinally movable portion puncture a wall, a spring` coil encircling of the coil..

said stem and secured thereto at its forward In witness whereof I have hereunto set portion7 the rear portion of said coil being my hand.

free to move longitudinally of said stem, a MICHAEL HEFIFERNAN. 

